Business 40 Improvement Project

Salem Parkway (formerly Business 40) is officially open as of Feb. 2, 2020.


The Business 40 Improvement project updates include:

  • Replacing the existing roadway pavement
  • Modernizing entrance and exit ramps
  • Replacing nine vehicular bridges and two pedestrian bridges
  • Lengthening the acceleration and deceleration lanes between ramps
  • Widening existing roadway shoulders and adding new shoulders
  • Building portions of a multi-use path from Lockland Avenue to Liberty Street
  • Increasing the speed limit to 55 mph
  • Renaming all of US 421/Business 40 "Salem Parkway"

 

Latest News:

New Exit Numbers Along Business 40 / Salem Parkway / U.S. 421
The new Salem Parkway / U.S. 421 will reflect new exit numbers and signage. Below is a detailed list of those changes: 

Eastbound U.S. 421 exits with their old and new numbering:
• Eastbound U.S. 421 to I-40 East, will become Exit 238 (previously no exit number)
• Exit 2A, U.S. 421 to Silas Creek Parkway South, will become Exit 237B
• Exit 2B, U.S. 421 to Silas Creek Parkway North, will become Exit 237A
• Exit 3A, U.S. 421 to Knollwood Street, will become Exit 236
• Exit 3B, U.S. 421 to U.S. 158/Stratford Road, will become Exit 235
• Exit 4, U.S. 421 to Cloverdale Avenue, will become Exit 234C
• Exit 5A, U.S. 421 to Peters Creek Parkway, will become Exit 234A
• Exit 5C, U.S. 421 to Marshall Street and Cherry Street, will become Exit 233B
• Exit 6A, U.S. 421 to U.S. 52 South, will become Exit 232C
• Exit 6B, U.S. 421 to U.S. 52 North, will become Exit 232B
• Exit 6C, U.S. 421 to Martin Luther King Jr. Drive, will become Exit 232A
• Exit 7, U.S. 421 to Lowery Street, will become Exit 231
• Exit 8, U.S. 421 to U.S. 158/Walkertown/Reidsville, will become Exit 230
• Exit 10, U.S. 421 to Linville Road, will become Exit 228
• Exit 12, U.S. 421 to N.C. 74 West, will become Exit 227
• Exit 14, U.S. 421 to Kernersville/South Main Street, will become Exit 224
• Exit 15, U.S. 421 to N.C. 66/N.C. 150/Kernersville/Walkertown, will become Exit 222
• Exit 17, U.S. 421 to Macy Grove Road, will become Exit 221

Westbound U.S. 421 exits with their old and new numbering:
• Exit 17, U.S. 421 to Macy Grove Road, will become Exit 221
• Exit 15, U.S. 421 to N.C. 66/N.C. 150/Kernersville/Walkertown, will become Exit 222
• Exit 14, U.S. 421 to Kernersville/South Main Street, will become Exit 224
• Exit 12, U.S. 421 to N.C. 74 West, will become Exit 227
• Exit 10, U.S. 421 to Linville Road, will become Exit 228
• Exit 7, U.S. 421 to Fifth Street, will become Exit 231
• Exit 6C, U.S. 421 to Martin Luther King Jr. Drive, will become Exit 232A
• Exit 6B, U.S. 421 to U.S. 52 North, will become Exit 232B
• Exit 6A, U.S. 421 to U.S. 52 South, will become Exit 232C
• Exit 5D, U.S. 421 to Main Street, will become Exit 233A
• Exit 5C, U.S. 421 to Cherry Street and Marshall Street will, become Exit 233B
• Exit 5A, U.S. 421 to Peters Creek Parkway, will become Exit 234A
• Exit 4B, U.S. 421 to West First Street, will become Exit 234B
• Exit 4A, U.S. 421 to Cloverdale Avenue, will become Exit 234C
• Exit 3C, U.S. 421 to Stratford Road North, will become Exit 235A
• Exit 3B, U.S. 421 to Stratford Road South, will become Exit 235B
• Exit 3A, U.S. 421 to Knollwood Street, will become Exit 236
• Exit 2B, U.S. 421 to Silas Creek Parkway North, will become Exit 237A
• Exit 2A, U.S. 421 to Silas Creek Parkway South, will become Exit 237B
• Exit 1, U.S. 421 to I-40, will become Exit 238


Learn More About the Complete Business 40 Improvement Project